Venetian blind



Sept. 6, 1949. c. ADLER 2,480,993

VENETIAN BLIND Filed Aug. 8, 1946 3 Sheets-Sheet l JNVENTOR. CHARLESAlum Sept 6, 1949.

v c. ADLER VENETIAN BLIND Filed Aug. 8, 1946 3 Sheets-Sheet 2 INVENTOR.

CHARLES A01. ER

4% Hum ye Sept. 6, 149.,

Filed Aug. 8, 1946 c. ADLER VENETIAN BLIND 3 Sheets-Sheet 5 1 1 1 y l 70 I INVENTOR. CHAR LES HDLER Patented Sept. 6 1949 =V-ENETIAN"BLINDCharlesndler qlinoinnaltii Qhio V 7 Application Angust' 8, 1946, SerialN 0568913 ii-Claims. (Cl: ISO- 1 73) :1 --This invention relates toimprovements in :Venetian blinds and-particularly to the -so-.ca1ledhardware for mounting: the raisingand lowering rope or ropes.

Infthe past when-it was-desired to replace or change'the-rope orropesassociatedwithiaVenetian' blind A for raising and lowering theslats thereof, it was necessaryto 7 completely remove ft'he blind fromthe windowor other opening: and completely disassemble a it I whereuponthe blind had to be reassembled practically. slat by-.slat.'

* 'Ihis same condition-existed withrespect-to the replacement orchanging of the so-called ladder" tape which holds theslats intheirspaced apart relation when the blindis in extended position.

'iBy this invention each of the foregoing disadvantages of aVenetian-blind is eliminated.

Itis, therefore, the-prineipal object of -thepresent invention toprovide a Venetian blind wherein 1 the raising and lowering cordcan-bereadily and easily replaced.

Another object of this invention is the provision of a Venetian blind,and particularly the hard- "ware --thereof, whereb the a blindincluding{ the head rail, tiltboard, slats and bottomrail earl-beassembledin a minimum of time and withla great 'Savingin time over theassembly-of said parts ;as required in the-past.

Another object of this invention is the provision of a Venetian blindwherein the slats raising and lowering; cord can bechanged while theblind is r hanging in its normal position.

A furtherobject of this invention is the-provi sion of a Venetian blindwherein the raising and lowering cord and the slat spacing tapes'oan bechanged or replaced without removing the blind =rrom its opening,disassembling theblind in any manner, and wherein the said ladder tapeor slat spacing tape can be replaced without removing the raising andlowering cord.

A still further object ofthis invention is the provision of hardware foruse in a Venetian blind to accomplish the foregoing objects and whichlhardwareis simple in construction and economical to manufacture.

A still further object of this invention is the provision of a simplewire clip which cooperates with the ladder steps of the'ladder tapestopreventthe lateral or other shifting of the said tapes during theoperation of the blind.

Other objects and advantages of the present invention should be readilyapparent by reference to the following specification considered-inconjunction with the; accompanying drawings formany modifications maybemade-in'theexaet structural detailsthere -shown-'and described withinthe scopeof the appended claims, "without: depart- -ing iromorexce'edingthe spirit oftheinvention. ln the drawing's:

Big 1 is an: elevational view ot aVenetianblind 1 illustrated as mountedin a: window openingand --which blind incorporates" the =-improvements'of --this- .invention. Y

-F-ig. 2 is a vertical seetional view-through the blind oi F-ig l-tal enon-line 2----2 on said Fig. 1.

=Fig.-;3 is anenlargedefragmehtary view-par-tly 1 in section and partlyintelevationtaken on line -3-53 genie. 1. v l5 F ig.-' l- -is-afragmentary vertical-sectional view I F-igiffa is a perspectivefview oia-plate or bracket utilized inmounting the ladder tapes and-formingad-etail of the invention.

2O -'-Fig.-6 isa fragmentary perspective-view of a iadder tape utilizedin carrying forward the present-invention. x

f Figfl? is an enlarged bottom plan 'viewof a rportion of a slat of a-Venetian-blindshowing the imv -proved olipofthepreseritinvention andseen from line 1+1 on llfigi fi.

Fig-Sis afiragmentary elevational view oi the {head rail of a" Venetianblind having. mounted {thereon the hardware oi the present invention.

--Fig.- 9is a view -partly-in seetionand partlyin elevation illustratingthe cord look as seen from 'line 9- 9 Orr-Fig 8. m

Fig. B10 is a vertioal sectional view of the cord{lock-takenon-1ine--l0l-0 on Eig 9.

Fig. 11-is aperspeetiyie view of the loekingdog assoeiated-with thecordlock of the present iiivention and'iorming adetail-oi the invention.

#Fig: 12 is a fragmentary v iew partly in section and partlyin elevationshowing thernounting of the'jtilt bar of a Venetianblind as SBBIif OInline .T'F r 13.. i i l ep Yer n fi l ila View i'ih l zon -9 thesn ,ql rae raertsas seeafrqmiin Fi 14 ,S, a perspegtiye view, of a .cordrollerand; its nountingbraohet.

- le re lerl i eqlfi at e ipi m c a i m for aocomplishing thepurposes:ofthe-present-in- .verrtipn.

l mei a? verticall sectional view-through the ..cord lock,ofr Fig. 15,taken orrlin'ez I 6.-.l fi-on said #:E-ig; :15. I

iiig apart thereof and it isto-be-understood that Fig;*l'lisasectionalview through thevcord roller 3 of the modification in Fig.15 taken on line "-41 on said Fig. 15.

Fig. 18 is a transverse sectional view through a further modification inthe details of the invention and a construction which may be substitutedfor that illustrated in Figs. 13 and 17.

Fig. 19 is a fragmentary perspective sectional view of a ladder tapeshowing a construction thereof somewhat different from that of Fig. 6but accomplishing the same purposes as the construction of said Fig. 6.

Fig. 20 is an enlarged vertical sectional view through a portion of theVenetian blind as seen from line 20-2Il on Fig. 1.

Throughout the several views of the drawings similar referencecharacters are employed to denote the same or similar parts.

This application discloses additional improvements in Venetian blindsand their construction over that disclosed in applicants pendingapplications Serial Numbers 609,069 and 667,870 now U. S. Patent2,471,710 issued May 31, 1949.

The Venetian blind as heretofore known and used comprises a head rail 29mounted relative to an opening illustrated in the drawings by a windowframe 2| with the head rail secured thereto by brackets 22 and 23. Belowthe head rail 26 is a tilt bar 24 pivotly carried by the head railthrough any suitable or desirable means such as the bracket 25 at theleft hand of the tilt bar and the depending member 26 at the right handthereof. The depending member 26 forms a part, as is usual construction,of the'cord locking mechanism and will later be described in detail. Thetilt bar bracket 25 is a part of the tilting mechanism indicated in thedrawings by the reference numeral 21 from which depends cords 28 and 29whereby the said mechanism 21 is actuated for oscillating the tilt bar24 about its longitudinal axis.

Below the tilt bar 24 are the slats 30 which vary in number dependingupon the height of the opening to be covered and the slats furthervarying in number depending upon the width of the individual slats. Theslats are spaced from one another by tape assemblies 3| and 32 whichhave their upper ends secured to the tilt bar 24 by means to besubsequently described and which tape assemblies have their lower endssecured to a bottom rail 33.

Each of the tape assemblies 3| and 32 is substantially identical and asparticularly illustrated in Fig. 6 comprises a forward flexible tapemember 34 and a rear flexible tape member 35. The tape members 34 and 35each have a similar opposed vertical edge spacedly connected to theother by a plurality of slat supporting members or ladder steps 36,there being as many slat supports or ladder steps 36 as there are slatsin the blind. The ladder steps or slat supports 36 are illustrated inthe drawings as having their opposite ends 31 and 38 secured,respectively, to the inner opposed surfaces of the tape lengths 34 and35. It should be noted however that in the manufacture of a tapeassembly the said ends 31 and 33 are in reality woven into the tapelengths 34 and 35 thereby resulting in merely a thickening of said tapelengths at the points of securement of the said ladder supports.

It will be noted from Fig. 6 that the slat supports or ladder steps 36are mounted one below the other in a vertical alignment and each on thesame side of the raising and lowering cord 39 which passes between thetape lengths 34 and 35. This is the ideal construction while withcertain of the weaving looms now in use the said slat supports or laddersteps can not be so formed but must be offset from one another wherebyalternate ladder steps are in vertical alignment but are offset withrespect to the adjacent step above and below. This construction isillustrated in Fig. 19 wherein the tape length is indicated by thereference numeral 35', the slat supports or ladder steps by thereference numeral 36' and the ends of said slat supports or ladder stepsby the reference numeral 38'.

Any suitable or desirable means may be employed for securing the tapelengths 34 and 35 of the tape assemblies to the tilt bar 24 thatillustrated in the drawings being a preferred one for purposes ofillustration only. The means there described comprises a bracket 40illustrated as a flat member relatively thin and substantially U shapedin plan including a base 4| and arms 42 and 43 extending from the endsof said base. The arms 42 and 43 are each, respectively, provided withan elongated rectangular opening 44 and 45 into which the ends of thetape layers 34 and 35 are respectively inserted. The ends of said tapelayers 34 and 35 are respectively secured to the bracket 40 by eachhaving secured thereto a metal clip or end 46 which has a lengthslightly greater than the length of its aperture wherefore it impingesagainst the under side of its plate beyond said aperture and cannot bepulled through the aperture by a direct pull on the tape. In order tosecure the bracket 49 in position on the tilt bar it is provided withapertures 41 through which extend screws 48.

The attachment of the lower ends of the tape lengths 34 and 35 to thebottom rail 33 may be accomplished in any suitable or desirable manner,that illustrated in the drawings consisting merely of folding the lowerends 49 and 59 of said tape lengths 34 and 35 onto one another againstthe under surface of the bottom rail 33 and passing therethroughsuitable fastening members such as tacks 5|. This method of fasteningthe lower ends of said tape members is clearly illustrated in Fig. 20.

In the past it has been customary to form the slat supports or laddersteps 36 alternately on opposite sides of the vertical center thereofwhereby the said slat supports or ladder steps alternately engagedopposite sides of the raising and lowering cord 39. By the presentinvention, and that of the aforementioned co-pending application SerialNo. 667,870, all of the ladder steps or slat supports are on the sameside of the cord 39 and will prevent the shifting of said tape assemblytransversely of the blind that requires crossing the said cord. Toinsure the tape assembly from shifting in the opposite direction use maybe made of the clip illustrated in Fig-7 and indicated in general by thereference numeral 52.

The clip 52 consists of a single length of wire bent on itself toprovide a loop having legs 53 and 54 which slightly diverge from theirjoined end 55. The legs 53 and 54 then converge and cross one another asarms 56 and 51 with each arm having, respectively, at its outer end areverse curve 58 and 59 terminating in spring fingers 60 and 6!. Thefingers 60 and SI may be slightly offset from their arms 56 and 5!whereby they engage and straddle the slat 39. This attachment of theclip 52 is accomplished by having its legs and arms lying against theunder side of the slat with their spring fingers passing upwardlythrough the elongated aperture 62 in said greater;

e o l w lh ubp rlsi riefe ma a in posite ends ofthe faidfa l erture 52.practice th slat su i j ldd ste fine e lll'ql the loop with,'as seenlung. '7, the loop leg L53 on one side thereof. and lo'opleg odontheother. The operation of the cli'pj2 is believed obvious in preventinglateral shifting of the tape assemblies since, as noted above, theraising and lowering cord by engaging the ladder step or slat support 36prevents this shifting in one direction and the clip base or bend 55engages the said slat support or ladderv step to prevent this shittingin the other direction. It should b'e noted that the aperture 621sprovided ineachslat andin the tilt bar in alignment with one another forpassage therethrough of the raisingand lowering cord 39. Actually thereare two suohaperturos 62 in" each slat and tilt b ar one near eache rid,through each of which passes a raising and low:- ering cord, one ofJwh'ich cords is" indicated 'by the reference numeral 39 whilethe otheris indicated by the reference numeral 63;

Theraisingandloweringcords 39 and 53 may be separate cords but generallyare merely the ends of a continuous cord which extends to the insidesurface of the Venetian blind and are joined as at 5E in Fig. 1. In thepast the said raising and lowering cord passed through a socalled cordlock which looks the cord against movement for thereby locking the slatsin adjusted positions, in reality, looking or fixing the height of thebottom rail 33 above the bottom of the opening with which the venetianblind is' used. The said raising andloweringoordsalso are utilized forcausing all of the slats to be superimposed directly'on one anotheratthe upper end of the opening and occupy a position immediately belowthe tilt bar 24. In the past the said raising and lowering cords passedupwardly through the cord lock into'fa channel along the upper surfaceof the head rail in jandthen passed through suitable apertures in saidhead rail to be threaded through the slat apertures 62. l I n order tochange the said raisingandlowering cords and wheninitially assembling aVenetian blind the parts wereremovedfrom the opening and the cordsthre'aded through the lock and the various apertures, an operation quitetedious and time consuming. By the present invention the cords are notthreadedthrough the cordlock nor through apertures in the headrail andthe said cord may be'replaced without removing the head rail fromtheopenlng'and can be accomplished by unskilled labor a minimum of timeand with a minimum of effort.

The improved c'ord lock of the present inven tion and indicatedingeneral hy thereference Character as is substantially a tnbular n1ember rectangular in cross section and comprising; a back at. sides e1amass ands doubts. The back 66 is extendedand turned at an angle therewprovide a mome fle el ihrpu hw iph screws ll pass forsecuring the cordlook t'o the ar c x f .th fieedia 2- .T ieimper end of the housing front5 9 i s spacedbelowthe under surface of the headrail thereby providingan opening 12 betweenjthe under suriac e of the head rail andtop or thecord lock. Within the housing and rotatably: mounted on ashaft 13 isadouble grooved pulley one grooveof yrhich receives the raising andlowering cord 3 9gwl' ile the other receives the raising and lowlering'cord t3. Below v the pulle .114 andniounted ona pivot pin 15' is thelocking dog 16 wh'ioh has serrated to provide teeth 11 thatcoorieratewltt ree end and lowering cords and housing side.

known if it is desired to subsequently adjust the restores 3'9am-ssmlocking them relative to theijhousins.

' The housing fronttil and right hand side 61 (as seen inflig. 8-) iseach provided with a cutout whioh' asseen in Figs. 8 and '9 has avertically disposed path 78 followed by an upwardly outwardly incliningportion 79. The path of the opening continues in the housing side 6'! byan upwardly' outwardly inclining portion 80 and a final directlyvertlcally disposed portion 81. In other wordsthis opening 18-81 iscontinuous through the; housing front 69 andhousing side S'Ithroughwhich the raising and lowering cords gd' andta may be inserted into thehousing. From this it follows that the said raising and lowering cordsneed not be threaded upwardly through the locking mechanism housing butcan be placed therein through the said opening 53-8: and this oan beaccomplished while the head rail is securely mounted in position theopening with which the blind is to be employed or the said raising andlowering cords can be arranged with respect toithe cord look while thehead rail is liying on its side on a Work bench or the like.

seen in Fig. tithe locking dog it crosses the housing opening to therebyprevent the passing therethrough of the saidraising and lowering cords,the locking dog is retained in this position by a removable pint:against which it is resting as illustrated in Fig. 8. Removal of thepin8 2 will permit the locking dog to fall by gravity to the positionillustrated in phantom lines at 83 in Fig. 10 thereby completelyuncovering the housing opening and permitting the insertion of the cordas above described. After the cord has been disposed within the housingthe said pin 82 is returned to the position illustrated in Figs. 8 and 9thereby positioning the locking dog is to prevent inadvertentdisplacement of the cord through the housing opening i88l and at thesame time positioning the locking dog 5 to engage the raising andlowering cords to lock them in operative position. It is believed theoperation of the cord looking mechanism for locking the cords is wellhn'ownhowever the said cords travel upwardly, as viewed inFigs. 8, 9 andii), for lowering the Venetian blind and when the bottom rail hasreachedthe desired elevation the said cords are aotuated to the left asseen in Fig. 8 thereby causing a frictional engagement of the said cordsand the locking dog teeth ll whereupon the locking dogrnoves with theraisin and lowering cords to be actuated from the position shown in Fig.S to the solid line position 8d of Fig. 10 which impinges the cordsbetween itself and the housing side 61'. 'I t willhe appreciated thatforce on said ropes in a direction to cause an upward, movement thereofwill only more tightly jam the locking dog raising As is well Venetianblind it is only necessary to exert a downward pull on the cords as seenin Fig. 8 which will release the dog Edand permit it to fall by gravityto the position illustrated in Fig. 8 whereupon the blind may beeitherraised or lowered and subsequently locked in its adjusted positionforagain merely engagin the cord lock teeth Ti with the raising andlowering cords.

In order to prevent'loss of the pin 82 it may be attached to the cordlook 65 as by a flexible attaohing member .82 which has oneend securedto the pin 82 and the other end secured to the cord lockhousing.

Thesaidraising and lowering cords after pass.-

i'ngthrough the cordlock e5 extend to a pulley mechanism indicated ingeneral by the reference numeral 85. This pulley mechanism 85 comprisesa U-shaped bracket having a front 86, a back 81 and a bottom 88. Thebottom 88 however does not extend completely the length of the front andback 86 and 81 but extend only approximately half way thereby permittingan opening through said bottom to permit the raising and lowerin cord topass therethrough. The bracket back 8'! has at its upper end, at anangle thereto, a flange 89 through which passes screws 90 for securingthe pulley mechanism to the under side of the head rail 25. The bracketfront 86 is of less height than the back 81 and is therefore spacedbelow the under surface of the head rail 20 thereby providing an opening9| through which the cords pass to be disposed interiorly of the pulleymechanism. Within the pulley housing is a double grooved pulley 92rotatably mounted on a pivot pin 93 extending between the said bracketfront and back 96 and 81.

The pulley 92 receives in one of its grooves the raising and loweringcord 39 and in its other groove the raising and lowering cord 63 andwhich latter cord is illustrated as depending from the bracket mechanism85 to and through the tilt bar, individual slats and bottom rail towhich it is secured as will later be made clear.

The raising and lowering cord 39 passes beyond the pulley mechanism 85to a second pulley mechanism indicated in general by the referencenumeral 94. This pulley mechanism 94 is substantially identical with thepulley mechanism 95 and its description above is deemed to suflice. Itshould be noted however that the pulley mechanism 94 has an opening 95between the upper end of its bracket front and the under surface of thehead rail 20 which is substantially identical with the opening 9|between the upper end of pulley mechanism front 86 and the under surfaceof the head rail 20.

As was noted above, in the past, the tilt bars 24 were provided withelongated apertures through which the raising and lowering cords passed.By the present invention the said tilt bar 24 is provided with a notchor slot 96 which extends through one side of the tilt bar, there being aseparate notch for each of the raising and lowering cords. Thisconstruction is particularly advantageous when replacing the improvedladder tapes of this invention and that disclosed in the aboveidentified application Serial No. 667,870.

The lower ends of the raising and lowering cords 39 and 63 may besecured to the bottom rail 33 in any suitable or desirable manner, forexample, as shown in the drawings, particularly Fig. 20, the said bottomrail is provided with an aperture 9! through which the cord passeshaving its free end formed as or tied into a knot 98 to enage a shoulder99 intermediate the ends of the aperture.

The means for securing the tilt bar to the head rail, as noted above, isat one end by means of the tilting mechanism bracket 25 and at the otherend by depending member 26. This depending member 26, as shown in Figs.8 and 12, comprises an extension I09 of the locking mechanism housingside 68. The said extension having formed therein a bayonet slotreceiving the pivot pin 02 from the tilt bar 24. The pivot pin I02 islocked in its slot |ll| by a latch member I03 pivoted at I04 to thebracket extension When it is desired to replace the raising and loweringcords 39 and 63 the Venetian blind is actuated to its uppermost positionwhereupon the slots are in superimposed contacting relation to oneanother. The ends of the ladder tape sections 34 and 35 are thenreleased from their brackets 40 by feeding the metal ends or clips 46thereof through the slots 44 and 45. The raising and lowering cords arethen released from the cord lock whereupon the Venetian blind slats andtheir ladder tape assemblies 3| and 32 now collapsed are lowered as aunit to the bottom of the opening frame 2| to rest on the sill I05thereof. The lower ends of the tape members 34 and 35 are released fromthe bottom rail 33 thereby exposing the cord knots 98. Opening of saidknots will permit the raising and lowering cord ends to be drawn throughthe aligned apertures 62 of the slats. The said slats ar retained intheir collapsed position which presents a relatively short openingthrough which the ends of the new cords may be inserted which upon beinginserted through the apertures 91 in the bottom rail 33 are knotted anddrawn back against the aperture shoulders 99. The ends 49 and 50 of thetape lengths 34 and 35 are then retacked to the bottom rail 33 over theapertures 9! therein. The said raising and lowering cord 39 is thenpassed through the opening of pulley mechanism 94 and the cords 39 and63 are then inserted through the opening 9| of pulley mechanism 85whereupon the said cords are passed through the opening '|88| of thecord lock mechanism 65. It is understood, of course, that the oldraising and lowering cords were removed after their knots 99 were openedand that the movable pin 82 of the cord lock mechanism had been removedto permit the locking dog 16 to take the position illustrated at 83 inFig. 10. After the new raising and lowering cord has been positionedwithin the cord lock the locking dog 16 is actuated to the positionillustrated in Fig. 8 and the pin 82 replaced.

The Venetian blind slats along with the bottom rail may now be raisedfrom the sill I05 to the upper end of the frame 2| and locked in thisposition whereupon the tape lengths 34 and 35 of each tape assembly 3|and 32 secured to its bracket 40 by having its metal tip or clip 46passed through the elongated apertures 44 and 45. The Venetian blind isnow ready for normal operation.

If it were desired to replace the tape assemblies 3| and 32 along withthe replacement of the raising and lowering cords 39 and 63 or if itwere desired to retain the old raising and lowering cords but merelyreplace the tape assemblies the same procedure would be gone throughwith except that, in the case of merely replacing the tape assemblies 3|and 32, the cord knots 98 would not be disturbed.

If it were desired to replace the old style tape assemblies wherein theslat supports 0r ladder steps are alternately on opposite sides of itsraising and lowering cord the procedure outlined in the above indicatedco-pending application 667,870 would be followed, namely, a bracket 49would be placed on the upper surface of the tilt bar near one endthereof with the arms projecting toward the cord of the tape assemblybeing replaced. This bracket would previously have had secured theretoone of the tape lengths 34 or 35 preferably that tape length on theopposite side of the Venetian blind from which the operator is working.The slat supports or ladder steps are placed each beneath its slat forthe entire length of the Venetian blind whereupon the remaining tapelength is secured to the bracket :10. The ladder steps or slat supportsof the old tape assembly is noW out from one of its tape lengths andremoved from the Venetian blind. It is of course understood that thebottom rail remains in position due to its connection with the raisingand lowering cords through the knot 97 or other connecting medium. Thebracket is now shifted to the position illustrated in Fig. 3 namely withits raising and lowering cord between its arms 42 and 43. At this pointit should be noted that with a tilt bar having a notch or slot thereinsuch as illustrated in Figs. 3 and 4 the opening thereof is closed bythe arm 02 or 03 of the bracket which crosses it. With the bracket 40 inthe desired position it is secured by screws 08. The lower ends 49 and50 are now fastened to the under surface of the bottom rail 33 by tacksor the like.

The second tape assembly is now placed on the Venetian blind in the samemanner as just described whereupon the Venetian blind is ready for anormal operation.

From the foregoing it will be appreciated that there has been provideda. Venetian blind in which the raising and lowering cords can bereplaced with a minimum of time and effort and without removing theblind or any part thereof from the opening with which it is being used.It will also be noted that the ladder tape assemblies BI and 32 canlikewise be replaced, on the job, by the average householder or utilityperson without the use of expert services. By the same token it shouldbe noted that a considerable time saving is effected in the manufactureand assembly of Venetian blinds at the factory in that the heretoforetime consuming operation of threading flexible raising and loweringcords through restricted apertures, cord lock housing, head rail channelslot, head rail outlet apertures and tilt bar apertures is eliminated tosay nothing of threading the cord through the individual slat apertures.

In Figs. 15, 16 and 17 a slightly modified construction is illustratedwhich however will accomplish the same purpose. This constructionconsists of letting into the under side of the head rail 20 a groove orchannel I06 through which the raising and lowering cords operate. Thecord lock is identical with that above described except that it isplaced nearer the under surface of the head rail 20 and at the same timethe head rail 20 is provided from its inside face to the channel slotI06 with a notch or groove I01 thereby providing between its uppersurface and the top of the locking mechanism front wall 69 an openingI08 whereby the cords may b inserted into the channel groove I06.Instead of utilizing pulley mechanisms 85 and 94 use is here made ofremovable pulleys I09 and H0 which are held in the channel groove I06 byremovable pins III and H2.

The use of this modified mechanism is identical with that abovedescribed since the cord 39 would be placed around the pulley H0 afterhaving been inserted through the individual slats and attached to thebottom rail 33 and the said pulley H0 pushed into the channel groove I06and the pin H2 then pushed home. The said raising and lowering cord 39along with the raising and lowering cord 93 would then both be placedaround the pulley I09 and it inserted into the channel groove I06 andits removable pin. I09 pushed home to retain it in position. The saidcords 39 and 63 would then be arranged within the locking mechanism 65.

If desired pulley mechanisms such as illustrated in Fig. 18 andindicated in general by the reference numeral [l3 may be employedinstead of the pulleys I09 and II 0. This pulley mechanism H3 consistsof a U-shaped bracket having a base H4 and depending arms H5 and II 0through which passes a removable pin II? for securing the double groovedpulley I8 in position. The pulley mechanism H3 would be secured inposition against the under side of an ungrooved head rail 20 by means ofscrews I I9. The said pulley mechanisms H3 would be employed with a cordlock mechanism 65 mounted against the under surface of the head rail 20in substantially the same manner as illustrated in Figs. 8 and 9.

From the foregoing it is believed now obvious that there has beenprovided a mechanism which will accomplish the objects initially setforth.

What is claimed is:

1. A cord guiding means for a Venetian blind comprising a head rail, apulley mounting means secured to the under side of the head railcomprising a U-shaped bracket having one of its arms spaced from thehead rail for permitting the placement of a raising or lowering cordinto the bracket and over the pulley, and a second bracket adjacent oneend of the head rail comprising a tubular casing with the pulleytherein, and a slot in the casing through which slot a cord may bepositioned in locating the cord in the casing and about the pulleywithout threading the end of the cord through the casing.

2. A cord guiding means as in claim 1 wherein a locking device isrockably mounted in said casing.

3. A cord guiding means as in claim 1 wherein a locking device isrockably mounted in said casing comprising a jaw and a spring urgingsaid jaw toward one side of the casing to clamp the cord between the jawand the casing.

CHARLES ADLER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,865,935 Marshall et a1. July 5,1932 2,054,241 Burns Sept. 15, 1936 2,057,608 Carroll Oct. 13, 19362,123,817 Warren July 12, 1938 2,166,301 Konen July 18, 1939 2,290,634Clark July 21, 1942 2,334,132 Sherwood Nov. 9, 1943 2,376,990 Wright May29, 1945

